8/15 x 5
solve the inequality x^2+7x+10 is greater than or equal to 0.
8/15x5
2x-10=-60+7x
-303x+1000y+500z=0
1000x-5303y-250z=0
5000x-250y-1803z0
x^2+y'2+z^2=1
1/6.3=?
y=x-3
y+x=1
1/4+1/3+1/9
-1448,7+1379,6
solve the inequality x^2-5x+4<0
